Synthesis and characterization of cobalt(III) complexes with a stereospecific ligand derived from (S)-valine
作者:Milan Strašák、Jaroslav Majer
DOI:10.1016/s0020-1693(00)82808-x
日期:1983.1
Abstract Complexes of the type [CoLX 2 ] + and [CoLXY], where L is the quadridentate ligand ethylenediamine-N,N′-di-(S)-α-isovalerate (H 2 ven) and X = H 2 O or ethylenediamine (en) and Y = NO 3 have been prepared. Three geometrical isomers, cis-α, cis-β, and trans forms, may in principle be obtained. The complex [Co(ven)(NO 3 )H 2 O] exists only as the cis-α geometrical isomer, while in the case of
摘要[CoLX 2] +和[CoLXY]类型的配合物,其中L为四齿配体乙二胺-N,N'-二-(S)-α-异戊酸酯(H 2 ven),X = H 2 O或乙二胺(en)和Y = NO 3已经准备好了。原则上可获得三种几何异构体,顺式-α,顺式-β和反式。络合物[Co(ven)(NO 3)H 2 O]仅以顺式-α几何异构体的形式存在,而在[Co(ven)-(H 2 O)2] +和[Co(ven)的情况下en] +配合物都发现存在顺式-α和顺式-β。顺式-α异构体的产率大大超过了顺式-β异构体的产率。13 C-NMR和吸收光谱测量证实了这些排列。此外,还讨论了配合物的红外光谱。这些化合物在1 A 1g→1 T 1g立方吸收带下显示出一串负CD键,
Stereospecific ligands and their complexes IX: Synthesis, characterization and antimicrobial activity of ethyl esters of (S,S)-ethylenediamine-N,N′-di-2-propanoic and (S,S)-ethylenediamine-N,N′-di-2-(3-methyl)-butanoic acids and corresponding platinum(IV) complexes: Crystal structure of tetrachloride-(O,O′-diethyl-(S,S)-ethylenediamine-N,N′-di-2-propanoato)-platinum(IV), [PtCl4(det-S,S-eddp)]
作者:Milena Z. Stanković、Gordana P. Radić、Verica V. Glođović、Ivana D. Radojević、Olgica D. Stefanović、Ljiljana R. Čomić、Olivera R. Klisurić、Vesna M. Djinović、Srećko R. Trifunović
DOI:10.1016/j.poly.2011.05.034
日期:2011.8
The synthesis of ethyl esters of (S,S)-ethylenediamine-N,N′-di-2-propanoic and (S,S)-ethylenediamine-N,N′-di-2-(3-methyl)-butanoic acids and corresponding platinum(IV) complexes are reported. The complexes have been prepared by direct reaction of K2[PtCl6] and ethyl esters of the acids mentioned above. The esters and complexes were characterized by elemental microanalysis, infrared, 1H and 13C NMR
(S,S)-乙二胺-N,N'-二-2-丙酸和(S,S)-乙二胺-N,N'-二-2-(3-甲基)-丁酸乙酯的合成并报道了相应的铂(IV)配合物。通过使K 2 [PtCl 6 ]与上述酸的乙酯直接反应来制备配合物。通过元素微量分析,红外,1 H和13 C NMR光谱对酯和配合物进行表征。通过对[PtCl的X射线分析]证实了合成配合物的光谱预测结构。4(det-(S,S)-eddp)]。研究了配体和相应的铂(IV)配合物对29种微生物的抗菌活性。通过微量稀释法进行测试,并确定了最小抑菌浓度(MIC)和最小杀微生物浓度(MMC)。测试的配体和相应的铂(IV)配合物表现出对某些G +细菌的显着活性。另一方面,这些复合物表现出中等和低的抗菌和抗真菌活性。
Syntheses and crystal structures of oxovanadium(IV) complexes with N,N′-ethylenebis(amino acids)
作者:Kenji Kawabe、Makoto Tadokoro、Ken Hirotsu、Naohisa Yanagihara、Yoshitane Kojima
DOI:10.1016/s0020-1693(00)00134-1
日期:2000.7
The oxovanadium(IV) complexes with N,N′-ethylenebis(aminoacids) ([VO(XeX)(H2O)], where X=A ((S)-Ala), V ((S)-Val) and P ((S)-Pro)) are synthesized and characterized by X-ray analyses and IR spectra. The crystal structure analyses reveal that the geometry around the vanadium cation of each complex is distorted octahedral and is coordinated by a water molecule and the tetradentate N,N′-ethylenebis(amino
A zinc(II) complex which is lowly toxic, has high insulin-like activity, and is effectively usable as a hypoglycemic agent for the prevention or treatment of diabetes; a hypoglycemic agent containing the complex; a medicinal preparation which contains the complex and is useful as a preventive/remedy for diabetes; and a food containing the complex, such as a health food or supplementary health food. The hypoglycemic agent contains an organic zinc(II) complex having as a ligand a compound selected among aminoalkylpyridines, bis-optically active amino acids, bisaminoalkylcarboxylic acids, oligopeptides, oligopseudopeptides, di-substituted aminocarboxylic acids, α-and β-hydroxycarboxylic acids, vitamins, glutamine derivatives, etc.
A zinc(II) complex which is lowly toxic, has high insulin-like activity, and is effectively usable as a hypoglycemic agent for the prevention or treatment of diabetes; a hypoglycemic agent containing the complex; a medicinal preparation which contains the complex and is useful as a preventive/remedy for diabetes; and a food containing the complex, such as a health food or supplementary health food. The hypoglycemic agent contains an organic zinc(II) complex having as a ligand a compound selected among aminoalkylpyridines, bis-optically active amino acids, bisaminoalkylcarboxylic acids, oligopeptides, oligopseudopeptides, di-substituted aminocarboxylic acids, α - and β - hydroxycarboxylic acids, vitamins, glutamine derivatives, etc.